From 8dad9e62b1b021d131436277e09c7add7e8c1992 Mon Sep 17 00:00:00 2001 From: Damien George Date: Mon, 9 Sep 2024 12:07:22 +1000 Subject: [PATCH 1/2] codal_app/microbithal_microphone: Add hal_microphone_get_level_db(). Signed-off-by: Damien George --- src/codal_app/microbithal.h | 1 + src/codal_app/microbithal_microphone.cpp | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/src/codal_app/microbithal.h b/src/codal_app/microbithal.h index 09ecb52..ac60201 100644 --- a/src/codal_app/microbithal.h +++ b/src/codal_app/microbithal.h @@ -166,6 +166,7 @@ int microbit_hal_compass_get_heading(void); void microbit_hal_microphone_init(void); void microbit_hal_microphone_set_threshold(int kind, int value); int microbit_hal_microphone_get_level(void); +float microbit_hal_microphone_get_level_db(void); const uint8_t *microbit_hal_get_font_data(char c); diff --git a/src/codal_app/microbithal_microphone.cpp b/src/codal_app/microbithal_microphone.cpp index 0cceb16..e530432 100644 --- a/src/codal_app/microbithal_microphone.cpp +++ b/src/codal_app/microbithal_microphone.cpp @@ -59,4 +59,11 @@ int microbit_hal_microphone_get_level(void) { return value; } +float microbit_hal_microphone_get_level_db(void) { + uBit.audio.levelSPL->setUnit(LEVEL_DETECTOR_SPL_DB); + float value = uBit.audio.levelSPL->getValue(); + uBit.audio.levelSPL->setUnit(LEVEL_DETECTOR_SPL_8BIT); + return value; +} + } From e876dcac96d597fb35f7541f752c2ea34dcae854 Mon Sep 17 00:00:00 2001 From: Damien George Date: Mon, 9 Sep 2024 12:07:45 +1000 Subject: [PATCH 2/2] codal_port/microbit_microphone: Add microphone.sound_level_db() method. This returns a floating-point number in dB. Signed-off-by: Damien George --- src/codal_port/microbit_microphone.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/codal_port/microbit_microphone.c b/src/codal_port/microbit_microphone.c index 338f2e0..cf37069 100644 --- a/src/codal_port/microbit_microphone.c +++ b/src/codal_port/microbit_microphone.c @@ -109,6 +109,13 @@ static mp_obj_t microbit_microphone_sound_level(mp_obj_t self_in) { } static MP_DEFINE_CONST_FUN_OBJ_1(microbit_microphone_sound_level_obj, microbit_microphone_sound_level); +static mp_obj_t microbit_microphone_sound_level_db(mp_obj_t self_in) { + (void)self_in; + microphone_init(); + return mp_obj_new_float_from_f(microbit_hal_microphone_get_level_db()); +} +static MP_DEFINE_CONST_FUN_OBJ_1(microbit_microphone_sound_level_db_obj, microbit_microphone_sound_level_db); + static mp_obj_t microbit_microphone_current_event(mp_obj_t self_in) { (void)self_in; microphone_init(); @@ -154,6 +161,7 @@ static MP_DEFINE_CONST_FUN_OBJ_1(microbit_microphone_get_events_obj, microbit_mi static const mp_rom_map_elem_t microbit_microphone_locals_dict_table[] = { { MP_ROM_QSTR(MP_QSTR_set_threshold), MP_ROM_PTR(µbit_microphone_set_threshold_obj) }, { MP_ROM_QSTR(MP_QSTR_sound_level), MP_ROM_PTR(µbit_microphone_sound_level_obj) }, + { MP_ROM_QSTR(MP_QSTR_sound_level_db), MP_ROM_PTR(µbit_microphone_sound_level_db_obj) }, { MP_ROM_QSTR(MP_QSTR_current_event), MP_ROM_PTR(µbit_microphone_current_event_obj) }, { MP_ROM_QSTR(MP_QSTR_is_event), MP_ROM_PTR(µbit_microphone_is_event_obj) }, { MP_ROM_QSTR(MP_QSTR_was_event), MP_ROM_PTR(µbit_microphone_was_event_obj) },